drm/i915/lrc: Do not wait atomically when stopping engines

I do not see that this needs to be done atomically and up to
one second is quite a long time to busy loop.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Tvrtko Ursulin 2016-03-03 14:36:42 +00:00
commit 8de1b23efa